JP2016212966A - Floodlight, luminaire and lighting control circuit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floodlight having a light emission diode that allows the stable lighting when connected to a fluorescent lamp inverter ballast and simplifies a rectifying circuit.SOLUTION: A floodlight is connectable to a fluorescent lamp inverter ballast and includes: a light-emitting diode; a first base which is mounted on one of a pair of sockets of the fluorescent lamp inverter ballast and has a pair of terminals; a second base which is mounted to the other of the pair of sockets of the fluorescent lamp inverter ballast and has a pair of terminals; a first resistor and a first capacitor which are connected in parallel between the pair of terminals of the first base; a second resistor and a second capacitor which are connected in parallel between the pair of terminals of the second base; and a rectifying circuit which is directly connected to any one of the pair of terminals of the first base to rectify an AC voltage supplied from the first base, and directly connected to any one of the pair of terminals of the second base to rectify an AC voltage supplied from the second base, and supplies the rectified voltage to the light-emitting diode.SELECTED DRAWING: Figure 9

Description

  The present invention relates to an illumination lamp, an illumination device, and a lighting control circuit.

  In recent years, attention has been focused on illumination lamps using light emitting diodes (LEDs) having features such as low power consumption and long life (hereinafter, sometimes referred to as LED illumination lamps). An LED illuminating lamp that receives the output of the fluorescent lamp inverter ballast is one of them, and can be used in place of a conventional fluorescent lamp.

  By the way, some fluorescent lamp inverter ballasts detect an abnormality at the time of activation, and when an abnormality is detected, the fluorescent lamp is turned off by a protection operation. If an LED illumination light is attached to such a fluorescent light inverter stabilizer in place of the fluorescent light, the LED illumination light may not be lit due to a protective operation.

  This is considered to be because the fluorescent lamp inverter ballast detected the abnormality and performed the protective operation because the current does not flow when the fluorescent lamp is started, but the current may flow even when the LED lamp is started. . Therefore, it is necessary to solve this problem in order to connect the LED lighting to the fluorescent light inverter ballast.

  As an example of a method for solving this problem, a full-wave rectifier circuit that rectifies a high frequency from an inverter ballast, a smoothing capacitor connected to the full-wave rectifier circuit via an inductor element, and an LED unit connected to the smoothing capacitor Thus, a technique for setting the inductor element to a value having sufficient impedance at twice the frequency from the fluorescent lamp inverter ballast is disclosed.

  However, the input portion of the LED lighting lamp has a pair of bases on both sides, and each base has two terminals (that is, a total of four terminals). And in said technique, the full wave rectifier circuit which bridge-connected four diodes with respect to each nozzle | cap | die is provided. Therefore, the number of parts is large and the circuit configuration is complicated.

  The present invention has been made in view of the above points, and in an illuminating lamp including a light emitting diode, when it is connected to a fluorescent lamp inverter stabilizer, it is stably lit and a rectifier circuit is simplified. And

  This illuminating lamp is an illuminating lamp that can be connected to a fluorescent lamp inverter ballast, and includes a light emitting diode and a first pair of terminals mounted on one of a pair of sockets of the fluorescent lamp inverter ballast. A base connected to the other of the pair of sockets of the fluorescent light inverter ballast, a second base having a pair of terminals, and a first connected in parallel between the pair of terminals of the first base Any one of the resistor and the first capacitor, the second resistor and the second capacitor connected in parallel between the pair of terminals of the second base, and the pair of terminals of the first base. AC voltage supplied from the first base connected directly to only one side is rectified, and supplied from the second base connected directly to only one of the pair of terminals of the second base. Rectified AC voltage to be It is a requirement to have a rectifier circuit for supplying to the light emitting diode pressure.

  According to the disclosed technology, in an illuminating lamp including a light emitting diode, when connected to a fluorescent lamp inverter ballast, it can be stably lit and a rectifier circuit can be simplified.

It is a perspective view which illustrates the appearance of the illuminating device concerning a 1st embodiment. It is a cross-sectional view which illustrates the illuminating lamp which concerns on 1st Embodiment. It is a figure which illustrates the circuit block of the illuminating lamp which concerns on 1st Embodiment. It is a figure which illustrates the circuit block of the illuminating lamp which concerns on the modification 1 of 1st Embodiment. It is a figure which illustrates the circuit block of the illuminating lamp which concerns on the modification 2 of 1st Embodiment. It is a figure which illustrates the circuit block of the illuminating lamp which concerns on the modification 3 of 1st Embodiment. It is a figure which illustrates the circuit block of the illuminating lamp which concerns on the modification 4 of 1st Embodiment. It is a figure which illustrates the circuit block of the illuminating lamp which concerns on the modification 5 of 1st Embodiment. It is a figure which illustrates the connection of the main circuits of the illuminating lamp which concerns on 1st Embodiment. It is a figure which illustrates the connection of the main circuits of the illuminating lamp which concerns on a comparative example. It is FIG. (1) explaining the electric power feeding path | route of the illuminating lamp which concerns on 1st Embodiment. It is FIG. (2) explaining the electric power feeding path | route of the illuminating lamp which concerns on 1st Embodiment. It is FIG. (3) explaining the electric power feeding path | route of the illuminating lamp which concerns on 1st Embodiment. It is FIG. (4) explaining the electric power feeding path | route of the illuminating lamp which concerns on 1st Embodiment.

  Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and redundant description may be omitted.

<First Embodiment>
FIG. 1 is a perspective view illustrating the appearance of the lighting apparatus according to the first embodiment. Referring to FIG. 1, an illumination device 1 includes an illumination lamp 2 and a lamp 5 on which the illumination lamp 2 is detachably mounted.

  The illuminating lamp 2 includes a translucent part 20 and bases 21 and 22. The translucent portion 20 is made of a resin or glass member that transmits light emitted from a built-in light source (an LED module 27 described later), and is provided at a base 21 provided at one end and at the other end. The cap 22 is sealed. The translucent part 20 can be made into a straight pipe shape, for example.

  The base 21 (first base) includes a pair of convex terminals 211 and 212. Similarly, the base 22 (second base) includes a pair of convex terminals 221 and 222. However, some of the terminals are not shown in FIG. 1 (see FIG. 9 described later). In addition, an electric circuit is provided inside the translucent part 20 (see FIG. 3 described later).

  The lamp 5 includes a fluorescent lamp ballast 50 (see FIG. 9) and a pair of sockets 51 and 52 to which the illumination lamp 2 is detachably mounted, and is configured to be connectable to a commercial AC power source. The frequency of the commercial AC power supply is, for example, 50 Hz or 60 Hz. The electric power from the commercial AC power supply is supplied to the fluorescent lamp ballast 50.

  The fluorescent lamp ballast 50 is, for example, a well-known fluorescent lamp glow ballast, a fluorescent lamp rapid ballast, a fluorescent lamp inverter ballast, or the like. However, as will be described later, the illuminating lamp 2 is configured to be directly connected to a commercial AC power supply, and in this case, the fluorescent lamp stabilizer 50 is not necessary. As described above, the illuminating lamp 2 can be configured to be connectable to any of the fluorescent lamp glow stabilizer, the fluorescent lamp rapid stabilizer, the fluorescent lamp inverter stabilizer, and the commercial AC power supply.

  The socket 51 includes concave terminals 511 and 512. Similarly, the socket 52 includes concave terminals 521 and 522. However, some of the terminals are not shown in FIG. 1 (see FIG. 9 described later).

  The terminals 211 and 212 of the base 21 of the illuminating lamp 2 are inserted into and fitted into the terminals 511 and 512 of the socket 51 of the lamp 5 and are electrically connected. Similarly, the terminals 221 and 222 of the base 22 of the illuminating lamp 2 are inserted into and fitted into the terminals 521 and 522 of the socket 52 of the lamp 5 and are electrically connected.

  FIG. 2 is a cross-sectional view illustrating the illuminating lamp according to the first embodiment. As shown in FIG. 2, in the illuminating lamp 2, a frame 410 is fixed inside the cylindrical light transmitting portion 20. An LED substrate 420 on which the LED module 27 is mounted is detachably attached to one side of the frame 410. A holder 430 is provided on the other side of the frame 410, and a DRV board 440 on which the rectifier circuit 24, the drive circuit 26, and the like are mounted is detachably attached to the holder 430.

  The frame 410 and the holder 430 have substantially the same cross-sectional shape in the longitudinal direction, and are configured to be inserted into the translucent part 20 by sliding in the longitudinal direction from the end side of the translucent part 20. Yes. Similarly, the LED board 420 and the DRV board 440 have substantially the same cross-sectional shape in the longitudinal direction, and are inserted into the translucent part 20 by sliding in the longitudinal direction from the end side of the translucent part 20. It is configured to be possible.

  By providing the holder 430 between the LED board 420 and the DRV board 440, the heat of the DRV board 440 becomes difficult to be transmitted to the LED board 420, and the influence of the heat on the LED module 27 becomes substantially uniform for all the LEDs. For this reason, the inconvenience that the lifetime of the LED is partially shortened with the passage of time can be prevented.

  Thus, the shape of the illuminating lamp 2 is similar to a straight tube fluorescent lamp, and can be easily replaced with an existing fluorescent lamp attached to the lamp 5. However, the shape of the illumination lamp 2 may not be similar to the fluorescent lamp. For example, the cross-sectional shape of the light transmitting portion 20 may be a semi-cylindrical shape instead of a cylindrical shape.

  FIG. 3 is a diagram illustrating a circuit block of the illuminating lamp according to the first embodiment. Referring to FIG. 3, the illuminating lamp 2 includes bases 21 and 22, a filter circuit 23, a rectifier circuit 24, a drive circuit 26, an LED module 27, and an inverter detection circuit 28 as main parts.

  The filter circuit 23 is an EMI countermeasure filter, and is a circuit for reducing electromagnetic noise emitted from the illumination lamp 2 to the surroundings. The filter circuit 23 can be, for example, a circuit in which line-to-line capacitors (X capacitors), anti-earth capacitors (Y capacitors), common mode coils, normal mode coils, and the like are connected in series or in parallel. By mounting the filter circuit 23, the illuminating lamp 2 can reduce electromagnetic noise and satisfy the EMI (Electro-Magnetic Interference) standard.

  The filter circuit 23 is configured to be bypassable by the switching circuit 61. The switching circuit 61 can be configured by, for example, a relay or a semiconductor switch (FET or the like).

  The rectifier circuit 24 is a circuit that rectifies an AC voltage supplied directly from the caps 21 and 22 or via the filter circuit 23 and supplies the rectified voltage to the LED module 27 via the drive circuit 26.

  The drive circuit 26 is a circuit that drives an LED module 27 including a plurality of light emitting diodes. The drive circuit 26 can be configured to include, for example, a step-up / down circuit, a constant current circuit, or the like. Providing the drive circuit 26 makes it possible to supply an appropriate current that does not exceed the rating to the LED module 27 even if the voltage supplied from the rectifier circuit 24 fluctuates, preventing failure of the LED module 27 and saving it. Electric power can be realized.

  The illuminating lamp 2 can be connected to any of the power supply units of a fluorescent light glow ballast, a fluorescent light rapid ballast, a fluorescent light inverter ballast, and a commercial AC power supply, but a circuit to be used can be selected depending on the connected object. It is configured.

  The inverter detection circuit 28 is a circuit that detects whether or not the fluorescent lamp ballast 50 built in the lamp 5 is a fluorescent lamp inverter ballast when the illuminating lamp 2 is connected to the lamp 5 and energized. . When the fluorescent lamp ballast 50 is a fluorescent lamp inverter ballast, the frequency of the signal input from the fluorescent lamp ballast 50 to the illumination lamp 2 is a high frequency of about several tens KHz.

  On the other hand, when the fluorescent lamp ballast 50 is any one of the fluorescent lamp glow ballast, the fluorescent lamp rapid ballast, and the commercial AC power supply, the fluorescent lamp ballast 50 (or directly from the commercial AC power supply) is input to the illumination lamp 2. The frequency of the transmitted signal is a low frequency of about 50-60 Hz. Therefore, the inverter detection circuit 28 detects, for example, whether or not the fluorescent lamp ballast 50 built in the lamp 5 is a fluorescent lamp inverter ballast based on the frequency of the signal input to the illuminating lamp 2. Can do.

  When the inverter detection circuit 28 detects that the fluorescent lamp ballast 50 incorporated in the lamp 5 is a fluorescent lamp inverter ballast, the filter circuit 23 is bypassed by the switching circuit 61. That is, when the fluorescent lamp ballast 50 incorporated in the lamp 5 is a fluorescent lamp inverter ballast, a signal input from the fluorescent lamp inverter ballast to the illuminating lamp 2 via the caps 21 and 22 is a filter circuit. 23 is bypassed and supplied to the rectifier circuit 24.

  Further, as shown in FIG. 4, a high frequency filter circuit 63 may be provided separately from the filter circuit 23. When the inverter detection circuit 28 detects that the fluorescent lamp ballast 50 incorporated in the lamp 5 is a fluorescent lamp inverter ballast, the switching circuit 61 passes the high-frequency filter circuit 63. Also good. Therefore, even if the filter circuit 23 is bypassed, the problem of EMI noise does not occur, and an appropriate current that does not exceed the rating can be supplied to the LED module 27. In some cases, the fluorescent light ballast 50 is provided with a function corresponding to a filter circuit.

  Further, as illustrated in FIG. 5, the drive circuit 26 may be configured to be bypassable by a switching circuit. The switching circuit can be configured by, for example, a relay or a semiconductor switch (FET or the like). When the filter circuit 23 is bypassed by the switching circuit 61, the output of the rectifier circuit 24 is supplied to the LED module 27 by bypassing the drive circuit 26. Also in the illuminating lamp of FIG. 5, when the inverter detection circuit 28 detects that the fluorescent lamp stabilizer 50 incorporated in the lamp 5 is a fluorescent lamp inverter stabilizer, the switching circuit 61 causes the high frequency You may make it pass a filter circuit.

  Furthermore, as shown in FIG. 6, a second drive circuit 66 may be provided separately from the drive circuit 26.

  Further, as illustrated in FIG. 7, the illumination lamp 2 may be configured to include a rapid detection circuit 29. The rapid detection circuit 29 is a circuit that detects whether the fluorescent lamp ballast 50 built in the lamp 5 is a fluorescent lamp rapid ballast when the illuminating lamp 2 is connected to the lamp 5 and energized. . For example, when the rapid detection circuit 29 detects that the fluorescent lamp ballast 50 incorporated in the lamp 5 is a fluorescent lamp rapid ballast, the filter circuit 23 and the drive circuit 26 are not bypassed, but the drive circuit 26 The specifications can be changed.

  The inverter detection circuit 28 does not detect that the fluorescent lamp ballast 50 is a fluorescent lamp inverter ballast, and the rapid detection circuit 29 indicates that the fluorescent lamp ballast 50 is a fluorescent lamp rapid ballast. In some cases, it may not be detected. In this case, it is recognized that the fluorescent lamp ballast 50 is a fluorescent lamp glow ballast, or that the illuminating lamp 2 is directly connected to the commercial AC power supply without passing through the fluorescent lamp ballast 50, and illumination is performed through the caps 21 and 22. The signal input to the lamp 2 is supplied to the rectifier circuit 24 via the filter circuit 23. The output of the rectifier circuit 24 is supplied to the LED module 27 via the drive circuit 26. In addition, the specification of the drive circuit 26 is selected to be compatible with a fluorescent lamp glow ballast and a commercial AC power supply.

  6 and 7, when the inverter detection circuit 28 detects that the fluorescent lamp ballast 50 incorporated in the lamp 5 is a fluorescent lamp inverter ballast, the switching circuit 61 causes the high frequency. The filter circuit may be passed through.

  Further, as shown in FIG. 8, the filter circuit 23 and the high frequency filter circuit 63 may be omitted.

  The outline of the overall operation of the circuit block mounted on the illuminating lamp 2 has been described above with reference to FIGS. 3 to 8. Next, a characteristic operation of the illumination lamp 2 will be described with reference to FIG. In FIG. 9, only main circuit connections of the illuminating lamp 2 according to the present embodiment are shown, and illustrations of connection portions not related to characteristic operations are omitted.

  In FIG. 9, the terminals 211 and 212 of the base 21 of the illuminating lamp 2 are inserted into and fitted into the terminals 511 and 512 of the socket 51 of the lamp 5 and are electrically connected. Similarly, the terminals 221 and 222 of the base 22 of the illuminating lamp 2 are inserted into and fitted into the terminals 521 and 522 of the socket 52 of the lamp 5 and are electrically connected.

  A resistor 215 (first resistor) and a capacitor 216 (first capacitor) are connected in parallel between the terminal 211 and the terminal 212 of the base 21 of the illuminating lamp 2. Similarly, a resistor 225 (second resistor) and a capacitor 226 (second capacitor) are connected in parallel between the terminal 221 and the terminal 222 of the base 22 of the illuminating lamp 2.

  The resistors 215 and 225 are circuits that generate impedance corresponding to the filament of the fluorescent lamp. By setting the resistance values of the resistors 215 and 225 to an appropriate impedance (several Ω to several hundred Ω) corresponding to the filament of the fluorescent lamp, the lighting is stably performed when the illumination lamp 2 is connected to the fluorescent lamp inverter stabilizer. Can be made. The functions of the capacitors 216 and 226 will be described later.

  The rectifier circuit 24 is a bridge-type full-wave rectifier circuit configured using, for example, a so-called fast recovery diode having a short reverse recovery time. The rectifier circuit 24 is directly connected to only one of the pair of terminals of the base 21 to rectify the AC voltage supplied from the base 21 and is directly connected to only one of the pair of terminals of the base 22. The AC voltage supplied from the base 22 is rectified. In FIG. 9, as an example, the rectifier circuit 24 is directly connected to the terminal 211 of the base 21 and the terminal 222 of the base 22, but is not limited thereto. For example, the rectifier circuit 24 may be directly connected to the terminal 212 of the base 21 and the terminal 221 of the base 22.

  When the fluorescent lamp ballast 50 is other than the fluorescent lamp inverter ballast, the rectifier circuit 24 rectifies the AC voltage input from the caps 21 and 22 via the filter circuit 23 (not shown in FIG. 9). Then, the rectified voltage rectified by the rectifier circuit 24 passes through the drive circuit 26 (not shown in FIG. 9) via the positive-side wiring 31 and the negative-side wiring 32 which are output portions of the rectifier circuit 24. , And supplied to both ends of the LED module 27.

  On the other hand, when the fluorescent lamp ballast 50 is a fluorescent lamp inverter ballast, the rectifier circuit 24 rectifies the AC voltage directly input from the fluorescent lamp inverter ballast without passing through the filter circuit 23. The rectified voltage rectified by the rectifier circuit 24 is output to the positive side wiring 31 and the negative side wiring 32, bypasses the drive circuit 26, and is supplied to both ends of the LED module 27.

  The LED module 27 includes a plurality of series connection portions (six light emitting diodes 271 connected in series in FIG. 9) in which a plurality of light emitting diodes 271 are connected in series between the positive side wiring 31 and the negative side wiring 32. Have. Each series connection portion is connected in parallel in a plurality of rows. When the voltage between the positive side wiring 31 and the negative side wiring 32 exceeds the sum of the forward voltages of the plurality of light emitting diodes 271 constituting the series connection portion, a current flows through each light emitting diode 271 to emit light.

  By the way, the fluorescent lamp inverter ballast uses the terminal 211 of the base 21 and the terminal 222 of the base 22 to supply power to the fluorescent lamp side, and the terminal 212 and the terminal 22 of the base 22 of the lamp 2. There is a second type that uses 221 to feed power to the fluorescent lamp side. Further, a third type for supplying power to the fluorescent lamp side using the terminal 211 of the base 21 and the terminal 221 of the base 22 and a fluorescent lamp using the terminal 212 of the base 21 and the terminal 222 of the base 22 of the illumination lamp 2 are used. There is a fourth type that feeds power to the side. Conventionally, the circuit shown in the comparative example of FIG.

  In the illumination lamp 2X of the illumination device 1X shown in FIG. 10, the capacitors 216 and 226 are not provided. Instead, two rectifier circuits 24A and 24B are provided. As described above, by providing the two rectifier circuits 24A and 24B, the rectified voltage is supplied to the positive-side wiring 31 when any of the fluorescent lamp inverter ballasts of the first type to the fourth type is connected. And the negative wiring 32.

  However, in the circuit of FIG. 10, the circuit configuration of the rectifier circuits 24A and 24B is complicated. Therefore, in the illuminating lamp 2 according to the present embodiment, by adding a capacitor 216 connected in parallel to the resistor 215 and a capacitor 226 connected in parallel to the resistor 225, power supply required by only one rectifier circuit 24 is provided. The route was secured and the rectifier circuit was simplified.

  In the illuminating lamp 2, when the first type fluorescent lamp inverter ballast is connected, power is supplied as shown in the power supply path A of FIG. 11, and the capacitors 216 and 226 do not become power supply paths.

  On the other hand, when the second type fluorescent lamp inverter ballast is connected, power is supplied as shown in the power supply path B of FIG. That is, a signal (a high-frequency signal having a frequency of about several tens of KHz) input from the fluorescent lamp ballast 50 to the illumination lamp 2 is supplied to the rectifier circuit 24 side via the capacitors 216 and 226.

  When a third type fluorescent lamp inverter ballast is connected, power is supplied as shown in a power supply path C of FIG. That is, a signal (a high-frequency signal having a frequency of about several tens of KHz) input from the fluorescent lamp ballast 50 to the illumination lamp 2 via the terminal 211 of the base 21 is directly connected to the rectifier circuit 24 without using the capacitor 216 as a power supply path. Supplied to the side. On the other hand, a signal (a high-frequency signal having a frequency of several tens of KHz) input to the illumination lamp 2 via the terminal 221 of the base 22 is supplied to the rectifier circuit 24 side via the capacitor 226.

  When a fourth type fluorescent lamp inverter ballast is connected, power is supplied as shown in a power supply path D of FIG. That is, a signal (a high-frequency signal having a frequency of about several tens of KHz) input from the fluorescent lamp stabilizer 50 to the illuminating lamp 2 via the terminal 212 of the base 21 is supplied to the rectifier circuit 24 side via the capacitor 216. Is done. On the other hand, a signal (a high-frequency signal having a frequency of about several tens of KHz) input to the illumination lamp 2 via the terminal 222 of the base 22 is directly supplied to the rectifier circuit 24 side without using the capacitor 226 as a power feeding path.

  Capacitors 216 and 226 can have any capacitance that has a sufficiently low impedance with respect to a high-frequency signal input from fluorescent lamp ballast 50 to illumination lamp 2, but capacitors 216 and 226 have a capacitance of 0.1 μF. The above is preferable. This is because when the capacitances of the capacitors 216 and 226 are less than 0.1 μF, the impedance is not sufficiently lowered with respect to the high-frequency signal input from the fluorescent lamp ballast 50 to the illumination lamp 2.

  Further, the capacitances of the capacitors 216 and 226 are preferably 1 μF or less. This is because, by setting the capacitances of the capacitors 216 and 226 to 1 μF, the impedance can be sufficiently reduced with respect to a high-frequency signal input from the fluorescent lamp ballast 50 to the illumination lamp 2. Further, if the capacitances of the capacitors 216 and 226 are larger than 1 μF, the impedance becomes excessively low due to the excessive capacitance, which may be detected as abnormal in the lighting sequence of the inverter ballast, and may not be lit.

  In this manner, the resistor 215 and the capacitor 216 are connected in parallel between the pair of terminals of the base 21, and the resistor 225 and the capacitor 226 are connected in parallel between the pair of terminals of the base 22. Then, only one of the pair of terminals of the base 21 is directly connected to the rectifier circuit 24, and only one of the pair of terminals of the base 22 is directly connected to the rectifier circuit 24.

  As a result, the AC voltage supplied from the fluorescent lamp inverter stabilizer to the terminal to which the rectifier circuit 24 of the base 21 is not directly connected and the terminal to which the rectifier circuit 24 of the base 22 is not directly connected is converted into the capacitor 216 and the capacitor 226. Can be supplied to the rectifier circuit 24. As a result, the rectifier circuit is simplified, and the AC voltage supplied from the fluorescent lamp inverter ballast can be rectified by only one rectifier circuit 24.

  The rectifier circuit 24 uses four rectifier diodes, but the number of parts is halved compared to the rectifier circuits 24A and 24B (comparative example) using eight rectifier diodes. This can contribute to the cost reduction of the illumination lamp 2.

  The preferred embodiment and its modification have been described in detail above, but the present invention is not limited to the above-described embodiment and its modification, and the above-described implementation is performed without departing from the scope described in the claims. Various modifications and substitutions can be added to the embodiment and its modifications.

  For example, in the above embodiment, as an example of an illumination lamp, a lamp that can be connected to any of a fluorescent lamp glow ballast, a fluorescent lamp rapid ballast, a fluorescent lamp inverter ballast, and a commercial AC power source is shown. However, the present invention can be applied to an illuminating lamp that can be connected to at least a fluorescent lamp inverter ballast. In other words, it can be applied to lighting lamps that can be connected only to fluorescent lamp inverter ballasts, and can also be connected to fluorescent lamp inverter ballasts, and can also be applied to lighting lamps that can be connected to other fluorescent lamp ballasts and commercial AC power supplies. it can.

  Further, in the case of an illuminating lamp that can be connected only to a fluorescent lamp inverter ballast, only necessary ones in the circuit blocks of FIGS. 3 to 8 may be mounted. For example, an inverter detection circuit, a rapid detection circuit, a filter circuit, a drive circuit, etc. may not be installed.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Illuminating lamp 5 Lamp 20 Translucent part 21, 22 Base 23 Filter circuit 24 Rectifier circuit 26 Drive circuit 27 LED module 28 Inverter detection circuit 29 Rapid detection circuit 31 Positive side wiring 32 Negative side wiring 50 Fluorescent lamp ballast 51 , 52 Socket 61 Switching circuit 63 High frequency filter circuit 66 Second drive circuit 211, 212, 221, 222, 511, 512, 521, 522 Terminal 215, 225 Resistor 216, 226 Capacitor 271 Light emitting diode 410 Frame 420 LED substrate 430 Holder 440 DRV board

JP 2008-277188 A

Claims (7)

An illumination lamp that can be connected to a fluorescent light inverter ballast,
A light emitting diode;
A first base having a pair of terminals, mounted on one of a pair of sockets of the fluorescent light inverter ballast;
A second base having a pair of terminals, which is attached to the other of the pair of sockets of the fluorescent lamp inverter ballast;
A first resistor and a first capacitor connected in parallel between the pair of terminals of the first base;
A second resistor and a second capacitor connected in parallel between the pair of terminals of the second base;
One of the pair of terminals of the second base is rectified with only one of the pair of terminals of the first base to rectify an AC voltage supplied from the first base, and one of the pair of terminals of the second base And a rectifying circuit that rectifies an AC voltage supplied directly from the second base and supplies the rectified voltage to the light emitting diode.   The AC voltage supplied from the fluorescent lamp inverter stabilizer to the terminal to which the rectifier circuit of the first base is not directly connected and the terminal to which the rectifier circuit of the second base is not directly connected is: The illuminating lamp according to claim 1, wherein the rectifier circuit is supplied to the rectifier circuit via the first capacitor and the second capacitor.   3. The illumination lamp according to claim 1, wherein capacitances of the first capacitor and the second capacitor are 0.1 μF or more.   The illuminating lamp according to claim 3, wherein capacitances of the first capacitor and the second capacitor are 1 µF or less.   5. The illuminating lamp according to claim 1, wherein the first resistor and the second resistor generate an impedance corresponding to a filament of a fluorescent lamp. The illumination lamp according to any one of claims 1 to 5,
And a lamp for mounting the illumination lamp. A lighting control circuit used for an illuminating lamp connectable to a fluorescent lamp inverter ballast,
A light emitting diode;
A first resistor and a first resistor connected in parallel between the pair of terminals of a first base having a pair of terminals of the illuminating lamp, which are mounted on one of a pair of sockets of the fluorescent lamp inverter ballast. A capacitor,
A second resistor and a second resistor connected in parallel between the pair of terminals of a second base having a pair of terminals of the illuminating lamp, which are attached to the other of the pair of sockets of the fluorescent lamp inverter ballast. A capacitor,
One of the pair of terminals of the second base is rectified with only one of the pair of terminals of the first base to rectify an AC voltage supplied from the first base, and one of the pair of terminals of the second base And a rectifying unit that rectifies an alternating voltage supplied directly from the second base and that supplies the rectified voltage to the light emitting diode.

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